Kovar Grades

Explore our Kovar alloy grades including Kovar ASTM F-15 and other controlled expansion nickel-iron-cobalt alloys. Find information about properties, specifications, standards and applications for glass sealing, electronics and precision components.

Grade Families
Inconel, Hastelloy, Incoloy, Monel, Nickel, Nimonic and other high-performance alloys.
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Bar, plate, sheet, pipe, tube, strip, wire, forging, flange and custom size supply.
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Kovar

Alloy 46

Alloy 46 is a controlled-expansion nickel-iron alloy containing approximately 46% nickel and balance iron. Its low and relatively stable coefficient of thermal expansion makes....

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Kovar

Alloy 52

Alloy 52 is a controlled-expansion nickel-iron alloy containing approximately 52% nickel and balance iron. Its thermal expansion is closely matched to a range of....

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Kovar

Kovar is a vacuum-melted iron-nickel-cobalt controlled-expansion alloy developed for hermetic sealing to hard borosilicate glass and selected ceramic materials. Its tightly controlled chemistry produces....

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